Table 2.
Unstandardized Path and Moderator Estimates for the Full and Best-Fitting Pubertal Moderation Models (N=926 twins)
| Path Estimates | Linear Moderator Estimates | Nonlinear Moderator Estimates | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | a | c | e | βX | βY | βZ | βX2 | βY2 | βZ2 |
| MEBS Total Score | |||||||||
| Full Model | −.01 | .22 | .68 | 2.14 | 2.13 | −0.86 | −1.15 | −3.19 | 1.73 |
| (−.38, .37) | (−.15, .45) | (.56, .80) | (−4.76, 4.76) | (−.72, 4.42) | (−1.95, .26) | (−8.78, 8.78) | (−7.48, 2.46) | (−.26, 3.50) | |
| *No nonlinear | −.08 | .40 | .63 | −1.61 | - | - | - | - | - |
| or CE linear | (−.33, .17) | (.09, .53) | (.58, .68) | (−2.14,−1.11) | - | - | - | - | - |
| Body Dissatisfaction | |||||||||
| Full Model | .03 | .47 | −.46 | −2.41 | −.60 | −1.10 | 1.99 | −2.43 | 1.06 |
| (−.46, .43) | (.06, .63) | (−.59, −.35) | (−5.09, .92) | (−3.06, 1.65) | (−2.23, .09) | (−3.59, 7.46) | (−6.41, 5.84) | (−1.11, 3.17) | |
| *No nonlinear | .07 | −.34 | .55 | −1.58 | - | .44 | - | - | - |
| or C linear | (−.40, .35) | (−.44, .44) | (.47, .65) | (−2.21, −.67) | - | (.11, .79) | - | - | - |
| Weight/Shape Concerns | |||||||||
| Full Model | −.03 | .36 | .57 | 2.84 | 1.37 | .14 | −1.97 | −3.23 | 0.05 |
| (−.43, .55) | (−.21, .57) | (.43, .71) | (−2.57, 5.00) | (−4.95, 4.95) | (−1.04, 1.45) | (−6.68, 6.17) | (−8.44, 8.85) | (−2.14, 2.10) | |
| *No nonlinear | .25 | −.34 | −.62 | 1.34 | - | - | - | - | - |
| or CE linear | (−.02, .49) | (−.52, .52) | (−.68, −.58) | (.88, 1.87) | - | - | - | - | - |
| Weight Preoccupation | |||||||||
| Full Model | .01 | .13 | .74 | 1.20 | 3.63 | −.91 | −3.19 | −4.96 | 1.78 |
| (−.46, .47) | (−.14, .36) | (.60, .86) | (−5.00, 5.00) | (1.27, 5.40) | (−1.50, .20) | (−9.00, 9.00) | (−8.24, −.97) | (−.05, 3.00) | |
| *No A mods | .00 | .14 | .75 | - | 3.48 | −.94 | - | −4.61 | 1.88 |
| (−.36, .36) | (−.09, .34) | (.64, .86) | - | (1.96, 5.00) | (−1.50, .00) | - | (−7.07, −2.16) | (.28, 3.00) | |
Note. MEBS= Minnesota Eating Behavior Survey; a = genetic path estimate; c = shared environmental path estimate; e = non-shared environmental path estimate; βX = linear moderator of genetic path estimate; βY = linear moderator of shared environmental path estimate; βZ =linear moderator of non-shared environmental path estimates; βX2= nonlinear moderator of genetic path estimate; βY2= nonlinear moderator of shared environmental path estimate; βZ2= nonlinear moderator of non-shared environmental path estimate. Estimates are followed by 95% confidence intervals in parentheses. Confidence intervals that do not overlap with zero indicate statistical significance (bolded) at p <.05. In the “Full” model, genetic, shared environmental, and non-shared environmental estimates are allowed to vary both linearly and nonlinearly across levels of the moderator (i.e., pubertal development). The best fitting model is listed below the full model and denoted by an asterisk.